diff --git a/src/libs/tgf/application.cpp b/src/libs/tgf/application.cpp
index 945b41cb..73f69c2d 100644
--- a/src/libs/tgf/application.cpp
+++ b/src/libs/tgf/application.cpp
@@ -128,20 +128,33 @@ GfEventLoop& GfApplication::eventLoop()
     return *_pEventLoop;
 }
 
+void GfApplication::restart()
+{
+	// Shutdown the gaming framework.
+	GfShutdown();
+
+	// Delete the event loop if any.
+	delete _pEventLoop;
+
+	// Restart.
+	GfRestart();
+}
+
 void GfApplication::exit(int nStatusCode)
 {
+	// Shutdown the gaming framework.
+	GfShutdown();
+
+	// Delete the event loop if any.
+	delete _pEventLoop;
+
+	// Trace what we are doing.
 	if (!nStatusCode)
 		GfLogInfo("Exiting normally from %s.\n", _strName.c_str());
 	else
 		std::cerr << "Exiting from " << _strName
 				  << " after some error occurred (see above)." << std::endl;
 
-	// Shutdown the gaming framework.
-	GfShutdown();
-
-	// Delete the event loop if any.
-	delete _pEventLoop;
-	
 	// The end.
 	::exit(nStatusCode);
 }
diff --git a/src/libs/tgf/tgf.hpp b/src/libs/tgf/tgf.hpp
index 99dc7044..933979d5 100644
--- a/src/libs/tgf/tgf.hpp
+++ b/src/libs/tgf/tgf.hpp
@@ -176,6 +176,9 @@ class TGF_API GfApplication
 	void setEventLoop(GfEventLoop* pEventLoop);
 	GfEventLoop& eventLoop();
 
+	//! Restart the app.
+	virtual void restart();
+
 	//! Exit from the app.
 	virtual void exit(int nStatusCode = 0);
 	
diff --git a/src/libs/tgfclient/guiapplication.cpp b/src/libs/tgfclient/guiapplication.cpp
index d34aaa04..14012a7a 100644
--- a/src/libs/tgfclient/guiapplication.cpp
+++ b/src/libs/tgfclient/guiapplication.cpp
@@ -59,6 +59,7 @@ bool GfuiApplication::parseOptions()
 bool GfuiApplication::setupWindow(bool bNoMenu)
 {
 	// Initialize the window/screen.
+	_bWindowUp = true; // In case, GfScrInit() would call restart() ...
 	_bWindowUp = GfScrInit();
 
 	// Initialize the UI menu infrastructure.
@@ -79,6 +80,25 @@ GfuiEventLoop& GfuiApplication::eventLoop()
     return *dynamic_cast<GfuiEventLoop*>(_pEventLoop);
 }
 
+void GfuiApplication::restart()
+{
+	// Shutdown the window/screen.
+	if (_bWindowUp)
+	{
+		GfScrShutdown();
+		_bWindowUp = false;
+	}
+
+	// Shutdown the gaming framework.
+	GfShutdown();
+
+	// Delete the event loop if any.
+	delete _pEventLoop;
+
+	// Restart.
+	GfRestart(GfuiMouseIsHWPresent());
+}
+
 void GfuiApplication::exit(int nStatusCode)
 {
 	// Shutdown the window/screen.
diff --git a/src/libs/tgfclient/tgfclient.h b/src/libs/tgfclient/tgfclient.h
index 6e96b872..125c5fe2 100644
--- a/src/libs/tgfclient/tgfclient.h
+++ b/src/libs/tgfclient/tgfclient.h
@@ -81,6 +81,7 @@ typedef struct ScreenSize
 TGFCLIENT_API bool GfScrInit(void);
 TGFCLIENT_API void GfScrShutdown(void);
 TGFCLIENT_API void GfScrGetSize(int *scrW, int *scrH, int *viewW, int *viewH);
+TGFCLIENT_API bool GfScrToggleFullScreen();
 TGFCLIENT_API unsigned char* GfScrCaptureAsImage(int* viewW, int *viewH);
 TGFCLIENT_API int GfScrCaptureAsPNG(const char *filename);
 
@@ -640,6 +641,9 @@ class TGFCLIENT_API GfuiApplication : public GfApplication
 	//! Application event loop.
 	GfuiEventLoop& eventLoop();
 	
+	//! Restart the app.
+	virtual void restart();
+
 	//! Exit from the app.
 	virtual void exit(int nStatusCode = 0);